ostbv.dk

📜 Historical scan 2026-06-18 04:04:04 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ostbv.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 11 August 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.89.60.93 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by ostbv-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 80ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 72ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.89.60.93	—	—	AS3292	TDC Holding A/S	193.88.0.0/15	🇩🇰 Denmark	Hvidovre

📧 MX Records#

1 records 82ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	ostbv-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::4 2a01:111:f403:ca09::b 2a01:111:f403:ca09::d 52.101.68.15 52.101.68.36 52.101.73.28 52.101.73.4	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am0pr83cu00404.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.154.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 146ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

7 records 216ms

TXT Record
apple-domain-verification=rBhdfFifLm5OTQMl
bw=NrEd5RQiv5Bez1RnTfs54FYUen7NcSin9KPsl7WsuhHT
google-site-verification=DnGM3v7wTULEDZcFdKSFpqTOTSZUFcJhCVzQeCpaVG4
kh1wrsp338q5lq0std3ctfp94phfvd50
lc5sfnmqwjwlj507285gtzbhlc0v4wzr
MS=ms62027095
v=spf1 a:mail.vagtcentralen.dk ip4:80.199.154.180 ip4:193.89.60.91 ip4:131.164.244.251 include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (ostbv.dk)
~all (soft fail)	v=spf1 a:mail.vagtcentralen.dk ip4:80.199.154.180 ip4:193.89.60.91 ip4:131.164.244.251 include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.ostbv.dk)
p=none (monitor only)	v=DMARC1;p=none;sp=none;pct=100;rua=mailto:it@ostbv.dk;ruf=mailto:it@ostbv.dk;ri=86400;fo=1;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 09:00:27

www	193.89.60.93 (AS3292) (address records, no CNAME)
www vs bare domain	Same network ostbv.dk: 193.89.60.93 (AS3292) www.ostbv.dk: 193.89.60.93 (AS3292)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

3 found

Selector	CNAME	Key
s1	s1.domainkey.u5473285.wl036.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u5473285.wl036.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-ostbv-dk._domainkey.ostbv.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

203ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

79ms

Field	Value
Serial	2026061201
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-20 16:07:10

Field	Value
Registrar	DANDOMAIN A/S
Registered	2015-08-11
Expires	2027-08-31 (309d)

🔗 Same registrant#

3 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
beredskabskort.dk	DANDOMAIN A/S
ostjyllandsbrandvaesen.dk	DANDOMAIN A/S
ostjyllandsbrandvæsen.dk	DANDOMAIN A/S

📋 WHOIS#

⏱️ Lookup Timing#

80ms

72ms

82ms

AAAA

85ms

TXT

216ms

CAA

75ms

HTTPS

79ms

TLSA

118ms

SOA

79ms

MTA-STS

45ms

DNSSEC

203ms

SRV

146ms

Total

963ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-12 21:36:58	903ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 12:44:22	5750ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 20:39:33	1177ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 04:30:52	899ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-18 04:04:04 shown	963ms	2 NS 1 A 1 MX	🔒 Secure